[en] Hydro-Quebec's rate proposals for 1992 are presented, based on the evolution of the costs of supply. An overall rate increase of 5.5% is projected. This is less than the 6.8% projected increase in costs. Measures to offset low runoff and debt guarantee costs represent obligations totalling 3.9%; Hydro-Quebec is thus limiting to 1.6% the rate increase covering its regular activities, the costs of which are expected to rise by 2.9%. To limit rate increases, Hydro-Quebec intends to exercise strict management of costs, while accepting that certain financial criteria will fall short of normally-sought levels. By rate category, the proposed rate increases are as follows: domestic, 5.9%; small and medium power, 5.1%; and large power, 5.5%. The average rate increase for the public lighting market, one of the main targets of Hydro-Quebec's energy efficiency project, is 5.1%. A new rate for dual-energy customers will be revised to consist of a monthly fixed charge plus an advantageous rate for energy consumed during off-peak periods and $0.35/kWh for energy consumed beyond the first 25 h during peak periods. The proposed rates will generate additional revenue of $339 million for the period May 1, 1992 to April 30, 1993. 4 figs., 31 tabs